Before we get on to the exciting stuff (- coming soon!!), we shall get started with installation of Ubuntu. So head over to Ubuntu site to download the CD/DVD image and follow the official guide for installation.
Ubuntu Desktop Images
Ubuntu Official Installation Guide
For installing Ubuntu alongside Windows follow the video tutorial below -
Caution: In case you have multiple Hard disk drives in your system, and you falter while picking the right Hard disk for Ubuntu installation, you can still recover the NTFS partition table and some of the partitions other than the region where Ubuntu was installed. You can do that by using “MiniTool Partition Wizard” which will allow you to restore lost partitions by scanning entire drive space.
Note: If the data is not overwritten on the disk space but if the partitions are lost, then the data is still intact and only the partition table needs to be restored.
Note 2: MiniTool is a shareware, it allows users to restore partitions but does not allow recovery of files with trail version. However restoring of Partition table is possible with trail version.
MiniTool Partition Wizard (Shareware)
Ubuntu + Windows Dual boot video tutorial